128015346 has 8 divisors (see below), whose sum is σ = 256030704. Its totient is φ = 42671780.

The previous prime is 128015341. The next prime is 128015347. The reversal of 128015346 is 643510821.

It is a sphenic number, since it is the product of 3 distinct primes.

128015346 is an admirable number.

It is a super-2 number, since 2×128015346² = 32775857622999432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128015341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10667940 + ... + 10667951.

It is an arithmetic number, because the mean of its divisors is an integer number (32003838).

Almost surely, 2^128015346 is an apocalyptic number.

128015346 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128015346 is a wasteful number, since it uses less digits than its factorization.

128015346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21335896.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 128015346 is about 11314.3866824499. The cubic root of 128015346 is about 503.9885595161.

The spelling of 128015346 in words is "one hundred twenty-eight million, fifteen thousand, three hundred forty-six".